# Token Speed Simulator

> Simulate LLM output speed. Compare tokens-per-second, time-to-first-token and total latency across GPT-5, Claude, Gemini, Grok, Llama and open-weight endpoints.

Source: https://tokenomy.ai/tools/token-speed-simulator
Last updated: 2026-09-21
Publisher: Tokenomy — FinOps for AI
License: free to quote with attribution and a link to the source URL.

Model the streaming behavior of frontier LLMs. See time-to-first-token, sustained tokens/sec and total request latency for realistic prompt/completion sizes.

## What it does

Model the streaming behavior of frontier LLMs. See time-to-first-token, sustained tokens/sec and total request latency for realistic prompt/completion sizes.

- TTFT and TPS for July 2026 flagship models
- Compare hosted APIs vs self-hosted open-weight inference
- Model streaming vs non-streaming responses
- Estimate user-perceived latency for agent workflows

## Why it matters

Tokenomy is the economic runtime for AI — it shows where every AI dollar goes and gives you the controls to redirect it. This tool is free to use; sign in to save scenarios, share with your team and connect it to your live usage ledger.

## Related pages

- [Token Calculator](https://tokenomy.ai/tools/token-calculator)
- [Token Observability](https://tokenomy.ai/tools/token-observability)
- [Token Speed Simulator](https://tokenomy.ai/tools/token-speed-simulator)
- [Memory Calculator](https://tokenomy.ai/tools/memory-calculator)
- [Energy Usage Estimator](https://tokenomy.ai/tools/energy-usage-estimator)
- [Token Leaderboard](https://tokenomy.ai/tools/token-leaderboard)
- [Alternatives Explorer](https://tokenomy.ai/tools/alternatives-explorer)
- [Cost Optimization Suite](https://tokenomy.ai/tools/cost-optimization)
- [Why FinOps for AI](https://tokenomy.ai/finops-for-ai)
- [Pricing](https://tokenomy.ai/pricing)